40021402105 has 16 divisors (see below), whose sum is σ = 48730356864. Its totient is φ = 31548182400.

The previous prime is 40021402087. The next prime is 40021402147. The reversal of 40021402105 is 50120412004.

40021402105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40021402105 - 2¹⁵ = 40021369337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331452 + ... + 435778.

It is an arithmetic number, because the mean of its divisors is an integer number (3045647304).

Almost surely, 2^40021402105 is an apocalyptic number.

It is an amenable number.

40021402105 is a deficient number, since it is larger than the sum of its proper divisors (8708954759).

40021402105 is a wasteful number, since it uses less digits than its factorization.

40021402105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105456.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 40021402105 its reverse (50120412004), we get a palindrome (90141814109).

The spelling of 40021402105 in words is "forty billion, twenty-one million, four hundred two thousand, one hundred five".